Slopover 6
Slopover 6 : See also: Boilover. Basically, the same principles that are responsible for a boilover are the cause of a "slopover". The fundamental difference is that in a slopover the reaction is from water that has entered the tank since the start of a fire. Usually this introduction is the result of the firefighters' activities as they attempt to extinguish the crude oil(or Liquid of similar characteristics) fire. A slopover will occur at some moment after the heat wave has been formed - which may be from only a few minutes of burning - and water of foam is being applied to the liquid surface. Either the water from the hose streams or, after the bubbles collapse, the water in the foam will sink into the oil, contacting the heat wave, where it is converted to steam, and the agitation of the liquid surface spills some amount of oil over the tank rim. Historically, slopovers, although still exposing the firefighters to the danger of the escaping, burning oil, are not as violent as are boilovers. Regardless of tthe term used to describe the occurrence - that is boilover, slopover, frothover, or whatever - the likelihood of some event that will cause the oil to cascade over the tank shell and down into the dike area is always present when crude oil burns
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